For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
I don't feel a wife should ever leave her husband and children at all. But selling anyone's prescription medication is against the law, and moreover its very dangerous and can kill someone.
I agree, and divorce should not be a quick, go-to resolution. This is an illegal act that could get her charged, also. His actions could be construed as a danger to the whole family and should stop quickly.
As believers, we are charged to be holy and blameless, to flee the very appearance of evil lest the blessed Gospel be hindered and we give reason for people to speak evil about the church.